CN107386241A - A kind of 2000T jack ups wind-powered electricity generation mounting platform spud leg method of construction - Google Patents
A kind of 2000T jack ups wind-powered electricity generation mounting platform spud leg method of construction Download PDFInfo
- Publication number
- CN107386241A CN107386241A CN201710750239.4A CN201710750239A CN107386241A CN 107386241 A CN107386241 A CN 107386241A CN 201710750239 A CN201710750239 A CN 201710750239A CN 107386241 A CN107386241 A CN 107386241A
- Authority
- CN
- China
- Prior art keywords
- rack
- spud leg
- welding
- cleat assembly
- clamping plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
Abstract
The invention discloses a kind of 2000T jack ups wind-powered electricity generation mounting platform spud leg method of construction, spud leg cylinder, rack and clamping plate is first are distinguished spreading to being segmented partition length by methods described, then rack and clamping plate are prefabricated into component, last spud leg cylinder and rack cleat assembly welding equipment；Each stage considers to place welding allowance for shrinkage and reversible deformation during the spud leg sectional construction of the present invention, tooth pitch places 3.5mm welding allowances for shrinkage when rack docks, when rack cleat assembly is prefabricated, reversible deformation is placed in the middle part of component, when rack cleat assembly assembles with cylinder, rack crown places 3mm welding allowances for shrinkage away from body centre, welds placing for allowance for shrinkage and anti-deformation, can effectively ensure that spud leg rack postwelding size.
Description
Technical field
The invention belongs to ocean engineering and shipbuilding technical field, and in particular to a kind of 2000T
Jack up wind-powered electricity generation mounting platform spud leg method of construction.
Background technology
In the wind-force generation assets development process of ocean, jack up wind-powered electricity generation mounting platform is mainly used in the piling of wind-powered electricity generation pile tube,
Assembling is can also be used for, the realization of these major functions, depends on its particular component such as spud leg, jacking system, lifting
The application of machine etc..
Piling, hoisting machinery, power-equipment, accommodation and some liftables are housed on jack up wind-powered electricity generation mounting platform
Spud leg, during piling the shoe of spud leg bottom bottom, platform then lifts away from sea certain altitude along spud leg；Platform is down to water during displacement
Face, spud leg are risen, and platform can be dragged it by tugboat just as barge and move on to new well location.Spud leg is jack up wind-powered electricity generation mounting platform
Key position, need to be by elevating mechanism by platform raising to sea when jack up wind-powered electricity generation mounting platform implements operation
Above safe altitude, then carries out the pitching pile of spud leg, and whole platform is supported by shoe.
As one of 2000T jack up wind-powered electricity generation mounting platform key structures, pile leg structure is built and deposited
In many making difficult points：
1st, rack and clamping plate are high strength steels, and the difficulty of welding is very big, rack installation and welding
Stress and deformation are easily produced, the requirement of size Control is high after splicings at different levels and preassembling.
2nd, the welding of high-strength steel, preheating, interlayer temperature control and heat insulation work need to be carried out in strict accordance with WPS requirements, is selected
Appropriate Current Voltage.
3rd, the control of welding deformation：Frock and moulding bed are made full use of, deformation is put back in advance, places welding allowance for shrinkage, and
Rational welding sequence is formulated to connect.
4th, the nondestructive inspection amount of spud leg postwelding is big, and welding quality requires very high.
Therefore, a kind of construction environment of urgent need research and development is good, conveniently welds, makes precision height, can improve welding quality and work
The jack up wind-powered electricity generation mounting platform spud leg method of construction for making efficiency is imperative.Through examining relevant document, do not find and the present invention
Same or analogous technical scheme.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to now provide, a kind of construction environment is good, conveniently welds, closes up
Precision is high, can improve the 2000T jack up wind-powered electricity generation mounting platform spud leg methods of construction of welding quality and operating efficiency.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of 2000T jack ups wind-powered electricity generation mounting platform
Spud leg method of construction, its innovative point are：Methods described for first by spud leg cylinder, rack and clamping plate distinguish spreading to be segmented division
Length, rack and clamping plate are then prefabricated into component, last spud leg cylinder and rack cleat assembly welding equipment；The spud leg construction side
Method comprises the following steps that：
（1）Spud leg cylinder makes：Spud leg single-unit cylinder carries out blanking successively, groove opens system, edge rolling, longitudinal seam welding, fourth contact, single-unit
Cylinder apply for checking and examination it is qualified after, by cylinder splice to segmentation partition length；
（2）Rack and clamping plate spreading：Rack, clamping plate are lifted to progress spreading on spreading Special station to division is segmented respectively and grown
Degree；
（3）Rack cleat assembly is prefabricated：After the completion of rack, clamping plate spreading, rack and clamping plate are prefabricated into component；
（4）Spud leg cylinder and rack cleat assembly welding equipment：Cylinder and rack cleat assembly are lifted into upper spud leg sectional forming moulding bed,
Positioning welding after relative dimensions adjustment is qualified.
Further, the step（1）Spud leg barrel diameter 4200 ± 3mm of φ, circularity≤5mm, linearity≤3mm/m,
4mm/16m；Misalignment≤2mm, weld reinforcement≤3mm.
Further, the step（2）Docking port need to place welding allowance for shrinkage, single track when rack, the positioning of clamping plate spreading
Butt weld welding sequence to arrange welder to weld side 2-3 roads first, then back gouging, be polishing to mother metal whiting, weldering
Weld thick essentially identical, last both sides symmetrical welding to both sides, during rack spreading all rack butt welds need to weld simultaneously.
Further, the step（3）Rack is with that after clamping plate assembling assembly, need to adjust component centre position to arch, shape
Into welding anti-distortion, rack and cleat assembly welding sequence are from centre to both sides backstep.
Further, the step（4）Rigidly fixed after the positioning of spud leg Barrel hoisting with shaping moulding bed, then in cylinder table
Rack hookup wire and steel sleeve hookup wire are marked in face, and steel sleeve needs introversion when installing, and finally lifts positioning tooth bar cleat assembly, tooth
Bar cleat assembly need to place welding allowance for shrinkage when positioning.
Further, the step（4）Rack cleat assembly is that 180 ° of symmetrical two racks press from both sides with barrel soldering order
Board component welds simultaneously.
Further, the step（4）Rack cleat assembly is by rack cleat assembly and cylinder with barrel soldering order
Weld seam is divided into segment using 2.5m as one section, first welds odd number section, then weld even number section.
Further, the step（4）Rack cleat assembly is that single rack both sides clamping plate is symmetrical with barrel soldering order
Welding, each section using layering back welding welding.
Beneficial effects of the present invention are as follows：
（1）Each stage considers to place welding allowance for shrinkage and reversible deformation, rack during the spud leg sectional construction of the present invention
Tooth pitch places 3.5mm welding allowances for shrinkage during docking, and when rack cleat assembly is prefabricated, reversible deformation, rack folder are placed in the middle part of component
When board component assembles with cylinder, rack crown places 3mm welding allowances for shrinkage away from body centre, welds allowance for shrinkage and reversible deformation
Placing for amount, can effectively ensure that spud leg rack postwelding size.
（2）The present invention has formulated special welding order for spud leg sectional construction each stage, and rack-plate welding sequence is
Arrange welder to weld side 2-3 roads first, then back gouging, be polishing to mother metal whiting, it is thick basic that the back side is welded to both sides weldering
It is identical, last both sides symmetrical welding.Rack and clamping plate welding sequence are from centre to both ends backstep.Rack cleat assembly with
Barrel soldering order is that rack cleat assembly and cylinder weld seam are divided into segment using 2.5m as one section, first welds odd number section, then
Even number section is welded, 180 ° of symmetrical two rack cleat assemblies are welded simultaneously, and single rack both sides clamping plate is symmetrically welded, Mei Yiduan
Using layering back welding welding.The formulation of welding sequence, effectively controls welding deformation, improves welding quality and is imitated with welding
Rate.
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
A kind of 2000T jack ups wind-powered electricity generation mounting platform spud leg method of construction, method are first by spud leg cylinder, rack and clamping plate
Respectively then rack and clamping plate are prefabricated into component, last spud leg cylinder and rack cleat assembly by spreading to partition length is segmented
Welding equipment；Spud leg method of construction comprises the following steps that：
（1）Spud leg cylinder makes：Spud leg single-unit cylinder carries out blanking successively, groove opens system, edge rolling, longitudinal seam welding, fourth contact, single-unit
Cylinder apply for checking and examination it is qualified after, by cylinder splice to segmentation partition length；
（2）Rack and clamping plate spreading：Rack, clamping plate are lifted to progress spreading on spreading Special station to division is segmented respectively and grown
Degree；
（3）Rack cleat assembly is prefabricated：After the completion of rack, clamping plate spreading, rack and clamping plate are prefabricated into component；
（4）Spud leg cylinder and rack cleat assembly welding equipment：Cylinder and rack cleat assembly are lifted into upper spud leg sectional forming moulding bed,
Positioning welding after relative dimensions adjustment is qualified.
Step（1）Spud leg barrel diameter 4200 ± 3mm of φ, circularity≤5mm, linearity≤3mm/m, 4mm/16m；Misalignment≤
2mm, weld reinforcement≤3mm.
Step（2）Docking port need to place welding allowance for shrinkage when rack, the positioning of clamping plate spreading, and single track butt weld welding is suitable
Sequence to arrange welder to weld side 2-3 roads first, then back gouging, be polishing to mother metal whiting, it is thick basic to be welded to both sides weldering
It is identical, last both sides symmetrical welding, during rack spreading all rack butt welds need to weld simultaneously.
Step（3）After rack and clamping plate assembling assembly, component centre position need to be adjusted to arch, form welding anti-distortion,
Rack and cleat assembly welding sequence are from centre to both sides backstep.
Step（4）Rigidly fixed after the positioning of spud leg Barrel hoisting with shaping moulding bed, then mark rack peace in drum surface
Wiring and steel sleeve hookup wire, steel sleeve need introversion when installing, and finally lift positioning tooth bar cleat assembly, and rack cleat assembly is determined
Welding allowance for shrinkage need to be placed during position, rack cleat assembly and barrel soldering order are 180 ° of symmetrical two rack cleat assemblies
Weld simultaneously, rack cleat assembly is using 2.5m as one section by rack cleat assembly and cylinder weld seam with barrel soldering order, is drawn
It is divided into segment, first welds odd number section, then weld even number section, rack cleat assembly presss from both sides with barrel soldering order for single rack both sides
Plate is symmetrically welded, and each section using layering back welding welding.
Each stage considers to place welding allowance for shrinkage and reversible deformation, rack during the spud leg sectional construction of the present invention
Tooth pitch places 3.5mm welding allowances for shrinkage during docking, and when rack cleat assembly is prefabricated, reversible deformation, rack folder are placed in the middle part of component
When board component assembles with cylinder, rack crown places 3mm welding allowances for shrinkage away from body centre, welds allowance for shrinkage and reversible deformation
Placing for amount, can effectively ensure that spud leg rack postwelding size.
The present invention has formulated special welding order for spud leg sectional construction each stage, and rack-plate welding sequence is first
Arrange welder to weld side 2-3 roads, then back gouging, be polishing to mother metal whiting, it is thick essentially identical that the back side is welded to both sides weldering,
Last both sides symmetrical welding.Rack and clamping plate welding sequence are from centre to both ends backstep.Rack cleat assembly and cylinder
Welding sequence is that rack cleat assembly and cylinder weld seam are divided into segment using 2.5m as one section, first welds odd number section, then weld
Even number section, 180 ° of symmetrical two rack cleat assemblies are welded simultaneously, and single rack both sides clamping plate is symmetrically welded, each section of use
It is layered back welding welding.The formulation of welding sequence, effectively controls welding deformation, improves welding quality and welding efficiency.
Above-described embodiment is presently preferred embodiments of the present invention, is not the limitation to technical solution of the present invention, as long as
The technical scheme that can be realized on the basis of above-described embodiment without creative work, it is regarded as falling into patent of the present invention
Rights protection scope in.
Claims (8)
- A kind of 1. 2000T jack ups wind-powered electricity generation mounting platform spud leg method of construction, it is characterised in that：Methods described is first by spud leg cylinder Body, rack and clamping plate distinguish spreading to partition length is segmented, and rack and clamping plate then be prefabricated into component, last spud leg cylinder with Rack cleat assembly welding equipment；The spud leg method of construction comprises the following steps that：（1）Spud leg cylinder makes：Spud leg single-unit cylinder carries out blanking successively, groove opens system, edge rolling, longitudinal seam welding, fourth contact, single-unit Cylinder apply for checking and examination it is qualified after, by cylinder splice to segmentation partition length；（2）Rack and clamping plate spreading：Rack, clamping plate are lifted to progress spreading on spreading Special station to division is segmented respectively and grown Degree；（3）Rack cleat assembly is prefabricated：After the completion of rack, clamping plate spreading, rack and clamping plate are prefabricated into component；（4）Spud leg cylinder and rack cleat assembly welding equipment：Cylinder and rack cleat assembly are lifted into upper spud leg sectional forming moulding bed, Positioning welding after relative dimensions adjustment is qualified.
- A kind of 2. 2000T jack ups wind-powered electricity generation mounting platform spud leg method of construction according to claim 1, it is characterised in that： The step（1）Spud leg barrel diameter 4200 ± 3mm of φ, circularity≤5mm, linearity≤3mm/m, 4mm/16m；Misalignment≤2mm, Weld reinforcement≤3mm.
- A kind of 3. 2000T jack ups wind-powered electricity generation mounting platform spud leg method of construction according to claim 1, it is characterised in that： The step（2）Docking port need to place welding allowance for shrinkage when rack, the positioning of clamping plate spreading, and single track butt weld welding sequence is Arrange welder to weld side 2-3 roads first, then back gouging, be polishing to mother metal whiting, it is thick essentially identical to be welded to both sides weldering, Last both sides symmetrical welding, during rack spreading all rack butt welds need to weld simultaneously.
- A kind of 4. 2000T jack ups wind-powered electricity generation mounting platform spud leg method of construction according to claim 1, it is characterised in that： The step（3）Rack forms welding anti-distortion, rack with that after clamping plate assembling assembly, need to adjust component centre position to arch It is from centre to both sides backstep with cleat assembly welding sequence.
- A kind of 5. 2000T jack ups wind-powered electricity generation mounting platform spud leg method of construction according to claim 1, it is characterised in that： The step（4）Rigidly fixed after the positioning of spud leg Barrel hoisting with shaping moulding bed, then mark rack hookup wire in drum surface And steel sleeve hookup wire, steel sleeve need introversion when installing, positioning tooth bar cleat assembly is finally lifted, when rack cleat assembly positions Welding allowance for shrinkage need to be placed.
- A kind of 6. 2000T jack ups wind-powered electricity generation mounting platform spud leg method of construction according to claim 1, it is characterised in that： The step（4）Rack cleat assembly is that 180 ° of symmetrical two rack cleat assemblies weld simultaneously with barrel soldering order.
- A kind of 7. 2000T jack ups wind-powered electricity generation mounting platform spud leg method of construction according to claim 1, it is characterised in that： The step（4）Rack cleat assembly and barrel soldering order be by rack cleat assembly and cylinder weld seam using 2.5m as one section, Segment is divided into, first welds odd number section, then weld even number section.
- A kind of 8. 2000T jack ups wind-powered electricity generation mounting platform spud leg method of construction according to claim 1, it is characterised in that： The step（4）Rack cleat assembly is that single rack both sides clamping plate is symmetrically welded with barrel soldering order, each section of use point Layer back welding welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710750239.4A CN107386241A (en) | 2017-08-28 | 2017-08-28 | A kind of 2000T jack ups wind-powered electricity generation mounting platform spud leg method of construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710750239.4A CN107386241A (en) | 2017-08-28 | 2017-08-28 | A kind of 2000T jack ups wind-powered electricity generation mounting platform spud leg method of construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107386241A true CN107386241A (en) | 2017-11-24 |
Family
ID=60347084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710750239.4A Pending CN107386241A (en) | 2017-08-28 | 2017-08-28 | A kind of 2000T jack ups wind-powered electricity generation mounting platform spud leg method of construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107386241A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108480873A (en) * | 2018-06-01 | 2018-09-04 | 南通振华重型装备制造有限公司 | A kind of folding method of jack up wind-powered electricity generation mounting platform spud leg epimere and spud leg hypomere |
| CN110480261A (en) * | 2019-07-30 | 2019-11-22 | 南通振华重型装备制造有限公司 | A kind of broken stone leveling ship spud leg building technology |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874379A (en) * | 2012-10-30 | 2013-01-16 | 上海振华重工集团（南通）有限公司 | Manufacture method of offshore riprap leveling ship |
| CN105057857A (en) * | 2015-08-07 | 2015-11-18 | 张家港润通海洋工程科技有限公司 | Process method for assembling and welding pile leg of ocean platform |
| CN105926575A (en) * | 2016-06-14 | 2016-09-07 | 王杨 | Tamping device used for electric power engineering construction |
-
2017
- 2017-08-28 CN CN201710750239.4A patent/CN107386241A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874379A (en) * | 2012-10-30 | 2013-01-16 | 上海振华重工集团（南通）有限公司 | Manufacture method of offshore riprap leveling ship |
| CN105057857A (en) * | 2015-08-07 | 2015-11-18 | 张家港润通海洋工程科技有限公司 | Process method for assembling and welding pile leg of ocean platform |
| CN105926575A (en) * | 2016-06-14 | 2016-09-07 | 王杨 | Tamping device used for electric power engineering construction |
Non-Patent Citations (2)
| Title |
|---|
| 殷世兵等: "浅谈钻井船桩腿接长过程控制", 《工业技术》 * |
| 沈楠楠等: "200英尺自升式钻井船桩腿齿条焊接施工技术", 《中国造船》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108480873A (en) * | 2018-06-01 | 2018-09-04 | 南通振华重型装备制造有限公司 | A kind of folding method of jack up wind-powered electricity generation mounting platform spud leg epimere and spud leg hypomere |
| CN110480261A (en) * | 2019-07-30 | 2019-11-22 | 南通振华重型装备制造有限公司 | A kind of broken stone leveling ship spud leg building technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102699494B (en) | Overall heating automatic welding process of spud leg main coil of offshore drilling platform and special tool of overall heating automatic welding process | |
| CN104668797B (en) | The preparation method of ring beam structural member in a kind of hydraulic bolt formula platform hoist system | |
| CN107386241A (en) | A kind of 2000T jack ups wind-powered electricity generation mounting platform spud leg method of construction | |
| CN102357783B (en) | Manufacturing process of pile shoe of wind power installation vessel | |
| CN102806415A (en) | Gouging-free welding method and welding platform for welding web plate and flange of H-shaped steel | |
| CN101885369A (en) | Positioning, mounting and segment folding method for self- elevating offshore platform elevating and locking system | |
| CN108480873A (en) | A kind of folding method of jack up wind-powered electricity generation mounting platform spud leg epimere and spud leg hypomere | |
| CN102151942B (en) | Hydraulic support self-preheating and automatic step-by-step welding process | |
| CN109079437A (en) | Large size liquefied gas storage multilayer limb end socket arrangement and method for construction peculiar to vessel | |
| KR20130112192A (en) | Deck elevating system | |
| CN104801836A (en) | Offshore wind power generation jacket foundation flange installation method | |
| CN105256781B (en) | Truss framed leg jointing rapid positioning device and positioning jointing method | |
| CN112077469B (en) | Method for continuously preheating and welding and installing giant maritime work pile leg in field and in multiple sections | |
| CN110014240B (en) | Welding process for tower foot of power transmission tower | |
| CN104985306A (en) | Single power and double-thin wire submerged arc automatic welding process suitable for structural steel welding | |
| CN101733596A (en) | Deformation control method of manufacture of large-size prebaked anode electrolytic bath shell | |
| CN111720127A (en) | Jacking platform for shield station crossing, shield station crossing system and construction method | |
| CN102528236A (en) | Welding method and welding jig for pile leg single-face rack | |
| CN114922489A (en) | Modular construction method of large-diameter centrum equipment | |
| CN108487212A (en) | Jacket skirt pile sleeve combines sheet of hoisting | |
| CN104416315A (en) | Welding device of main side pipe and welding method thereof | |
| CN203487525U (en) | High-strength steel pile leg | |
| CN203865305U (en) | Novel oil storage tank of 15 ten thousand cubic meters connected through assembled clamps | |
| CN105436659B (en) | The technique that a kind of pile legs of self-elevating drilling platform rack renews | |
| CN209006956U (en) | A kind of welding fixture guaranteeing hot cell housing face degree |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171124 |